Properties of the Number 99871

Ninety-Nine Thousand Eight Hundred Seventy-One

Basics

Value: 99870 → 99871 → 99872

Parity: odd

Prime: Yes

Previous Prime: 99859

Next Prime: 99877

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 99871

Divisors: 1, 99871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000011000011111

Octal: 303037

Duodecimal: 49967

Hexadecimal: 1861f

Square: 9974216641

Square Root: 316.023733285967

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes of the form 2n²+18n+7, n>=0. A154592

a(n) is the greatest prime > a(n-1) obtained by inserting a single digit anywhere in its string of digits (including at the beginning or end), starting with a(1) = 1. A389721

Smallest primes starting a complete three iterations Cunningham chain of the second kind. A110024

Decimal expansion of ∑_{n >= 2} (1/log(n)ⁿ). A99871